addEvent(window, "load", sortables_init);
var SORT_COLUMN_INDEX;
function sortables_init() {
	// Find all tables with class sortable and make them sortable
	if (!document.getElementsByTagName) return;
		tbls = document.getElementsByTagName("table");
	for (ti=0;ti<tbls.length;ti++) {
		thisTbl = tbls[ti];
		if (((' '+thisTbl.className+' ').indexOf("sortable") != -1) && (thisTbl.id)) {
			//initTable(thisTbl.id);
			ts_makeSortable(thisTbl);
		}
	}
}
function ts_makeSortable(table) {
	if (table.rows && table.rows.length > 0) {
		var firstRow = table.rows[0];
	}
	if (!firstRow) return;
	// We have a first row: assume it's the header, and make its contents clickable links
	for (var i=0;i<firstRow.cells.length;i++) {
		var cell = firstRow.cells[i];
		var txt = ts_getInnerText(cell);
		cell.innerHTML = '<a href="#" class="sortheader" '+ 'onclick="ts_resortTable(this, '+i+');return false;">' + txt+'<span class="sortarrow"> </span></a>';
	}
}

function ts_getInnerText(el) {
	if (typeof el == "string") return el;
	if (typeof el == "undefined") { return el };
	if (el.innerText) return el.innerText; //Not needed but it is faster
	var str = "";
	var cs = el.childNodes;
	var l = cs.length;
	for (var i = 0; i < l; i++) {
		switch (cs[i].nodeType) {
		case 1: //ELEMENT_NODE
			str += ts_getInnerText(cs[i]);
			break;
		case 3: //TEXT_NODE
			str += cs[i].nodeValue;
			break;
		}
	}
	return str;
}

function ts_resortTable(lnk,clid,path) {
	// get the span
	var span;
	for (var ci=0;ci<lnk.childNodes.length;ci++) {
		if (lnk.childNodes[ci].tagName && lnk.childNodes[ci].tagName.toLowerCase() == 'span') span = lnk.childNodes[ci];
	}
	var spantext = ts_getInnerText(span);
	var td = lnk.parentNode;
	var column = clid || td.cellIndex;
	var table = getParent(td,'TABLE');
	// Work out a type for the column
	if (table.rows.length <= 1) return;
	var itm = ts_getInnerText(table.rows[1].cells[column]);
	sortfn = ts_sort_caseinsensitive;
	if (itm.match(/^\d\d[\/-]\d\d[\/-]\d\d\d\d$/)) sortfn = ts_sort_date;
	if (itm.match(/^\d\d[\/-]\d\d[\/-]\d\d$/)) sortfn = ts_sort_date;
	if (itm.match(/^[?]/)) sortfn = ts_sort_currency;
	if (itm.match(/^[\d\.]+$/)) sortfn = ts_sort_numeric;
	SORT_COLUMN_INDEX = column;
	var newRows = new Array();
	
	
	//处理空白行
	var blankcount =0;
	var blankcolcount = table.rows[0].cells.length;
	for(var b=table.rows.length-1;b>=1;b--){
		var tid = table.rows[b].id;
		if(tid == null || tid == "" || tid == undefined || tid == "undefined"){
			table.deleteRow(b);
			blankcount++;
		}
	}
	for (j=1;j<table.rows.length;j++) {
		newRows[j-1] = table.rows[j];
	}
	newRows.sort(sortfn);
	if (span.getAttribute("sortdir") == 'down') {
		ARROW = "<font color='red' size='2'  style='font-family:宋体' title='从高至低排序'>↑</font>";
		newRows.reverse();
		span.setAttribute('sortdir','up');
	} else {
		ARROW = "<font color='green' size='2' style='font-family:宋体' title='从低至高排序'>↓</font>";
		span.setAttribute('sortdir','down');
	}
	// We appendChild rows that already exist to the tbody, so it moves them rather than creating new ones
	// don't do sortbottom rows
	for (i=0;i<newRows.length;i++) {
		if (!newRows[i].className || (newRows[i].className && (newRows[i].className.indexOf('sortbottom') == -1))){
			table.tBodies[0].appendChild(newRows[i]);
		}
	}
	// do sortbottom rows only
	for (i=0;i<newRows.length;i++) {
		if (newRows[i].className && (newRows[i].className.indexOf('sortbottom') != -1)) {
			table.tBodies[0].appendChild(newRows[i]);
		}
	}
	
	//隔行换色
	for (i=0;i<newRows.length;i++) {
		 newRows[i].className = (i%2>0)?"tableContentAlternating001":"tableContent001"; 
	}
	// Delete any other arrows there may be showing
	var allspans = document.getElementsByTagName("span");
	for (var ci=0;ci<allspans.length;ci++) {
		if (allspans[ci].className == 'sortarrow') {
			if (getParent(allspans[ci],"table") == getParent(lnk,"table")) { // in the same table as us?
				allspans[ci].innerHTML = ' ';
			}
		}
	}
	span.innerHTML = ARROW;
	
	//对列头重新排序
	var newthRows = new Array();
	var rowcounttable = document.getElementById("rowCountTable");
	if(rowcounttable!=null){
		for (var a=0;a<newRows.length;a++) {
			var rid = (newRows[a].id).split("_")[1];
			for(var b=1;b<rowcounttable.rows.length;b++){
				var crid = (rowcounttable.rows[b].id).split("_")[1];
				if(rid == crid){
					newthRows[a] = rowcounttable.rows[b];
				}
			}
		}
		for(var c=0;c<newthRows.length;c++){
			rowcounttable.tBodies[0].appendChild(newthRows[c]);
		}
		
	}
	//对操作列重新排序
	var newprocessRows = new Array();
	var processtable = document.getElementById("dataProcessTable");
	if(processtable!=null){
		for (var a=0;a<newRows.length;a++) {
			var rid = (newRows[a].id).split("_")[1];
			for(var b=1;b<processtable.rows.length;b++){
				var crid = (processtable.rows[b].id).split("_")[1];
				if(rid == crid){
					newprocessRows[a] = processtable.rows[b];
				}
			}
		}
		for(var c=0;c<newprocessRows.length;c++){
			processtable.tBodies[0].appendChild(newprocessRows[c]);
		}
	}

	for(var j=0;j<blankcount;j++){
		var otr = table.insertRow(-1);
		for(var c=0;c<blankcolcount;c++){
			var td = document.createElement("td");
			td.style.cssText = sysGridConfing.rowHeight;
			td.innerHTML = "&nbsp;";
			otr.appendChild(td);
		}
	}	
}

function getParent(el, pTagName) {
	if (el == null){
		return null;
	}else if (el.nodeType == 1 && el.tagName.toLowerCase() == pTagName.toLowerCase()){ // Gecko bug, supposed to be uppercase
		return el;
	}else{
		return getParent(el.parentNode, pTagName);
	}
}

function ts_sort_date(a,b) {
	// y2k notes: two digit years less than 50 are treated as 20XX, greater than 50 are treated as 19XX
	aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]);
	bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]);
	if (aa.length == 10) {
		dt1 = aa.substr(6,4)+aa.substr(3,2)+aa.substr(0,2);
	}else{
		yr = aa.substr(6,2);
		if (parseInt(yr) < 50) {
			yr = '20'+yr;
		} else {
			yr = '19'+yr;
		}
		dt1 = yr+aa.substr(3,2)+aa.substr(0,2);
	}
	if (bb.length == 10) {
		dt2 = bb.substr(6,4)+bb.substr(3,2)+bb.substr(0,2);
	}else{
		yr = bb.substr(6,2);
		if(parseInt(yr) < 50){
			yr = '20'+yr;
		}else{
			yr = '19'+yr;
		}
		dt2 = yr+bb.substr(3,2)+bb.substr(0,2);
	}
	if (dt1==dt2) return 0;
	if (dt1<dt2) return -1;
	return 1;
}

function ts_sort_currency(a,b) { 
	aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]).replace(/[^0-9.]/g,'');
	bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]).replace(/[^0-9.]/g,'');
	return parseFloat(aa) - parseFloat(bb);
}

function ts_sort_numeric(a,b) { 
	aa = parseFloat(ts_getInnerText(a.cells[SORT_COLUMN_INDEX]));
	if (isNaN(aa)) aa = 0;
	bb = parseFloat(ts_getInnerText(b.cells[SORT_COLUMN_INDEX])); 
	if (isNaN(bb)) bb = 0;
	return aa-bb;
}

function ts_sort_caseinsensitive(a,b) {
	aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]).toLowerCase();
	bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]).toLowerCase();
	if (aa==bb) return 0;
	if (aa<bb) return -1;
	return 1;
}

function ts_sort_default(a,b) {
	aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]);
	bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]);
	if (aa==bb) return 0;
	if (aa<bb) return -1;
	return 1;
}

function addEvent(elm, evType, fn, useCapture){
	if (elm.addEventListener){
		elm.addEventListener(evType, fn, useCapture);
		return true;
	}else if(elm.attachEvent){
		var r = elm.attachEvent("on"+evType, fn);
		return r;
	}else {
		alert("Handler could not be removed");
	}
}
